EP3880384B1 - Dispositif et procédé de profilage de pièces par formage à froid - Google Patents

Dispositif et procédé de profilage de pièces par formage à froid Download PDF

Info

Publication number
EP3880384B1
EP3880384B1 EP19808713.2A EP19808713A EP3880384B1 EP 3880384 B1 EP3880384 B1 EP 3880384B1 EP 19808713 A EP19808713 A EP 19808713A EP 3880384 B1 EP3880384 B1 EP 3880384B1
Authority
EP
European Patent Office
Prior art keywords
tool
tool holder
movement
workpiece
profiling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19808713.2A
Other languages
German (de)
English (en)
Other versions
EP3880384A1 (fr
Inventor
Daniel Dériaz
Ekrem Kapkin
Jan Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ernst Grob AG
Original Assignee
Ernst Grob AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ernst Grob AG filed Critical Ernst Grob AG
Publication of EP3880384A1 publication Critical patent/EP3880384A1/fr
Application granted granted Critical
Publication of EP3880384B1 publication Critical patent/EP3880384B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
    • B21H1/20—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling rolled longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B21D37/06—Pivotally-arranged tools, e.g. disengageable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/187—Rolling helical or rectilinear grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y10T29/49467—Gear shaping
    • Y10T29/49471—Roll forming

Definitions

  • the invention relates to the field of producing profiling, in particular by cold forming, for example in rotationally symmetrical solid or hollow parts. It refers to devices and methods according to the generic terms of the patent claims (see WO 2007/009267 A1 )
  • a method that allows a profiling to be created in a workpiece up close to an outwardly projecting shoulder of the workpiece is available WO 2007/009267 A1 known.
  • a cylindrical thin-walled hollow part which sits on an externally profiled mandrel, is cold-formed with a profiling that runs essentially parallel to the longitudinal axis of the hollow part by suddenly hammering at least one profiling tool on the hollow part from the outside, radially to the longitudinal axis of the hollow part is brought.
  • the profiling tool is oscillated in a direction perpendicular to the longitudinal axis, i.e. by a radial, linear back and forth movement on the surface of the hollow part.
  • the profiling tool is displaced axially relative to the hollow part with a constant radial feed depth until the desired profile length is reached, whereby the machining of the hollow part can be started at an outwardly projecting shoulder of the hollow part.
  • Another possible object of the invention is to enable profile creation with a particularly high surface quality.
  • Another possible object of the invention is to enable profile creation with particularly high productivity.
  • Another possible object of the invention is to enable profiling close to a workpiece projection, for example close to an outwardly projecting shoulder of the workpiece to be profiled.
  • Another possible object of the invention is to enable profiling between two profiling boundary structures and up close to them. At least one of these tasks can be solved by the method according to claim 1 or by the device according to claim 13.
  • a tool holder and with it a tool that is held by the tool holder is driven to a complex movement that has at least two components, namely a rotating movement, for example along an orbit, similar to a planet, and a rotational movement around the own axis. These two movements are synchronized with each other.
  • the orbiting movement can be a periodic movement.
  • a corresponding drive device can be provided to generate the rotary movement.
  • the tool holder and thus also the tool can be periodically brought up to a workpiece to be machined and have a forming effect on it and then move away from the workpiece again in order to then approach it again, etc.
  • the tool can be used once per revolution (or also with every second or every third revolution) can be brought into forming engagement with the workpiece.
  • the tool can carry out a tool movement on the workpiece that includes a rolling movement.
  • the tool can therefore have an effective area that carries out an at least partially rolling movement in a processing area of the workpiece.
  • the tool movement can have a rolling and a sliding movement component.
  • the tool can therefore intervene periodically (due to the orbital movement) in the workpiece for a certain period of time, and within this period of time in which the tool (more precisely: the effective area of the tool) is in contact with the workpiece, the tool rotates the axis of rotation of the tool holder, so that (during the specified period of time) a movement of the tool (tool movement) takes place on the workpiece.
  • the tool more precisely: the effective area of the tool
  • the tool rotates the axis of rotation of the tool holder, so that (during the specified period of time) a movement of the tool (tool movement) takes place on the workpiece.
  • different points in the effective area come into contact with different points in the processing area.
  • a high surface quality can be achieved since the workpiece can be machined along a large part of the axial profile extension to be created during a single intervention.
  • the workpiece can be processed essentially along the entire extent of the workpiece during a single intervention axial profiling to be generated takes place.
  • post-processing as in the case of the method according to WO 2007/009267 A1 This may be necessary if the surface quality requirements are particularly high and can be avoided because the processing does not consist of a large number of axially shifted individual processing steps along the axial profile extension, which only overlap one another to a small extent. Higher productivity can also be achieved due to the significantly lower number of tool interventions to be carried out.
  • the rotational movement around its own axis together with the aforementioned synchronization can cause the tool to be brought into engagement with the workpiece in a desired or predetermined azimuthal orientation, for example always in the same azimuthal orientation or, more precisely: always in the same azimuthal region. Due to the aforementioned rotational movement, a change in the azimuthal orientation of the tool takes place during each intervention (mediated by the tool holder); The azimuthal alignment changes over the duration of the intervention, for example in the same way with every intervention of the tool.
  • the rotational movement of the tool holder can be synchronized with the rotating movement of the tool holder such that the tool passes through the same azimuthal orientations during each of the forming interventions.
  • azimuth and azimuthal refer to the axis of rotation of the tool holder.
  • the synchronization enables sensible use of a tool that has a non-rotationally symmetrical shape (with respect to the specified axis of rotation when the tool is held in the tool holder).
  • a tool can be used that has an effective range that only extends over an azimuthal sector.
  • the tool can therefore be a sectoral tool. This, for example in contrast to those mentioned WO 2005/075125 A1 known rotationally symmetrical tools.
  • the tool can end after the effective range or be set back from the effective range in the radial direction (with respect to the axis of rotation mentioned). This means that there can be a free area that extends over an azimuthal area adjoining the effective area.
  • Such a sectoral tool can be suitable for producing profiling up close to a workpiece projection.
  • This is in contrast to the one mentioned WO 2005/075125 A1 known rotationally symmetrical tools in which the effective range extends over the entire circumference, and which also do not carry out a defined, let alone synchronized, rotary movement.
  • the tool presented here can have an effective area that has a non-rotationally symmetrical shape (with respect to the axis of rotation).
  • a free area adjoining the effective area can be faced towards the workpiece, in which a workpiece projection, for example a workpiece shoulder, can be accommodated, so that reshaping of the workpiece projection by the sectoral tool can be avoided .
  • the tool can therefore reshape the workpiece as described in an at least partially rolling manner until an (azimuthal) end of the effective range is reached, and then continue to rotate around the axis of rotation in order to accommodate the workpiece projection in the said free area (without the workpiece projection coming into contact with the tool).
  • the rotational movement can take place, for example, throughout the entire rotation or continuously. This makes it possible to achieve good synchronization of the rotary movement of the tool holder with the rotational movement of the tool holder.
  • the synchronization of the two movements can be implemented mechanically.
  • a mechanical synchronization device can therefore be provided for this synchronization.
  • the movements mentioned can also be synchronized with one another in another way, for example electronically, i.e. using an electronic synchronization device.
  • the synchronization device mentioned also referred to below as the second synchronization device, has a planetary gear.
  • it can have a ring gear and a planetary gear running in the ring gear, whereby the planetary gear can represent part of the tool holder or is at least firmly connected to the tool holder or rotates with the rotational movement of the tool holder about the axis of rotation and also takes part in the said orbital movement .
  • the axis of the planet gear can be coaxial with the axis of rotation.
  • the planetary gear can also drive the tool holder to rotate about its axis of rotation.
  • the drive device already mentioned above for generating the rotational movement of the tool holder about its axis of rotation of the tool holder can therefore have a planetary gear.
  • a planetary gear can therefore be provided which simultaneously generates the rotational movement of the tool holder about its axis of rotation and synchronizes this rotational movement with the rotating movement of the tool holder.
  • the mentioned, for example planetary orbital movement can be conveyed to the tool holder by a revolving body.
  • the tool holder can be mounted in the circulating body, in particular rotatably mounted about its axis of rotation.
  • the rotating body can, for example, perform a rotation about a rotating body axis, and the axis of rotation of the tool holder is spaced from the rotating body axis, so that the rotating axis carries out a rotating movement essentially along a circular path.
  • this rotating movement can generate the rotational movement of the workpiece holder, mediated by the planetary gear.
  • the circulating body axis can be aligned coaxially with an axis of the ring gear.
  • the drive device already mentioned above can have the circulating body and a planetary gear for generating the rotational movement of the tool holder about its axis of rotation.
  • a drive shaft for driving the rotating body to rotate about its rotating body axis can belong to the drive device mentioned.
  • a drive shaft for driving the rotating body to rotate about its rotating body axis may, in addition to the rotating body, also belong to a drive device for generating a movement of the rotating body.
  • a radial infeed of the tool or the tool holder - perpendicular to a longitudinal axis of the workpiece or a workpiece holder holding the workpiece - can be provided, so that an ever deeper engagement of the tool into the workpiece is made possible during the course of machining.
  • the tool can be advanced radially until a desired profile depth is reached.
  • the radial feed can be realized in that the circulating body or in particular a circulating body axis of the circulating body is moved towards the longitudinal axis, i.e. in this sense experiences a radial feed.
  • the revolving body can be mounted in a profiling head, in particular in the profiling head it can be rotatably mounted about its revolving body axis, and the profiling head can be driven to move towards the longitudinal axis.
  • the circulating body can be moved towards the longitudinal axis by means of a drive for the radial feed while it rotates about its circulating body axis.
  • the circulating body axis can be moved accordingly towards the longitudinal axis.
  • the described complex movement of the tool can have a further component, namely the described movement running radially to the longitudinal axis (infeed movement).
  • the axis of rotation of the tool holder can be adjusted accordingly perform a movement that results from a circular movement that is superimposed on a linear movement of the center of the circle, in particular, wherein the linear movement takes place in a plane that is defined by the circular movement.
  • a rotational movement of the workpiece or the workpiece holder around the longitudinal axis can be provided, for example generated by means of a corresponding drive device, for example by means of a torque motor, so that the workpiece can be machined by means of the tool at different positions distributed over the circumference of the workpiece.
  • a torque motor for example by means of a torque motor
  • different profile gaps in the profiling to be created can be created using the tool.
  • multiple tools may be provided, so that not necessarily a single tool (or each of the tools) contributes to the formation of all profile gaps of the profiling. Nevertheless, it can be provided that the tool engages with the workpiece at any position along the circumference of the workpiece at which a test gap in the profiling is to be created, and thus contributes to the formation of all profile gaps in the profiling.
  • the said rotational movement can have a varying rotational speed, in particular a rotational speed that varies periodically at least in sections.
  • the rotation movement mentioned can be, for example, an intermittent rotation.
  • the rotational speed of the rotational movement of the workpiece or the workpiece holder has successive phases of relatively higher rotational speed and relatively lower rotational speed.
  • the processing of the workpiece by the tool can take place in particular during phases of relatively lower rotation speed. The slower the workpiece rotates during the engagement of the tool or the longer the workpiece rotates slowly or stands still in the phases of relatively lower rotation speed, the better a high precision of the profiling ultimately produced can be achieved.
  • the tool processes the workpiece in phases of the rotational movement in which the workpiece is stationary.
  • the tool processes the workpiece in phases of rotational standstill of an intermittent rotation of the workpiece (rotation standstill has a rotation speed of zero).
  • a synchronization of the rotational movement of the workpiece holder with the rotating movement of the tool holder can be provided. This can ensure that the machining of the workpiece always takes place at the same positions along the circumference of the workpiece.
  • a synchronization device also referred to below as a first synchronization device, can be an electronic synchronization device.
  • the first synchronization device can, for example, synchronize the drive for the rotation of the workpiece or workpiece holder with the drive shaft for driving the revolving body to rotate about its revolving body axis.
  • the method can in particular be a method for producing a profile body provided with a profiling by cold forming a workpiece, wherein the workpiece can have a longitudinal axis and, in a processing area, an outer surface into which the profiling is to be introduced.
  • the outer surface can be extended along the longitudinal axis.
  • the outer surface can be concentric to the longitudinal axis, for example conical or cylindrical.
  • other shapes of the outer surface for example polygonal ones, for example in prismatic processing areas, are also possible.
  • the workpiece performs a rotational movement around the longitudinal axis.
  • the workpiece, in particular the outer surface mentioned is processed by a tool in a large number of successively carried out forming interventions, in each of which an effective area of the tool comes into contact with the machining area.
  • the corresponding tool movement is already described above.
  • the tool is held by a tool holder, and the tool holder is rotatably mounted in a rotating body about an axis of rotation of the tool holder and is driven to rotate about its axis of rotation. And the tool holder is driven to a rotating movement by the rotating body; In particular, the tool holder is driven by the circulating body to move along an orbit.
  • the rotational movement of the workpiece is synchronized with the rotating movement of the tool holder in such a way that several of the forming interventions take place at different positions distributed over a circumference of the workpiece.
  • the positions mentioned can be positions at which profile gaps in the profiling are to be created.
  • the positions can be positions that lie between adjacent profile gaps of the internal profiling to be created.
  • the rotational movement of the tool holder is synchronized with the rotating movement of the tool holder in such a way that the tool passes through the same azimuthal orientations during each of the forming interventions.
  • a profiling can be created, for example, which comes close to a profiling limiting structure, for example a workpiece projection.
  • the method can also be viewed as a method for profiling a workpiece and/or as a method for producing a profiling in a workpiece.
  • the workpiece can be a hollow part, in particular a rotationally symmetrical, for example cylindrical, hollow part.
  • the workpiece can be a solid part, in particular a rotationally symmetrical, for example cylindrical, solid part.
  • the workpiece can be a metal workpiece.
  • the processing area can be an area into which the profiling is to be introduced, i.e. an area to be profiled.
  • the processing area can be an axially delimited section of the workpiece, for example an end piece of a tubular or rod-shaped workpiece.
  • the workpiece can have a second area adjoining the processing area.
  • This second area can, adjacent to the processing area, have a profiling delimitation structure, for example a workpiece projection, which has a radial extent at least in an (azimuthal) angular area around the longitudinal axis that is larger than a radial extent of the outer surface in the processing area where this adjacent to the workpiece projection.
  • the profiling limiting structure can be a profiling obstacle, for example a workpiece shoulder.
  • a profiling boundary structure can form an end or a boundary of the profiling.
  • the outer surface in the processing area can, for example, be rotationally symmetrical, for example cylindrical or conical. However, the outer surface can also be designed differently, for example polygonal.
  • the profiling can be an external profiling. This can be created in a hollow part or in a solid part. With hollow parts, for example, it is also possible for an external and an internal profiling to be created at the same time, for example if it is intended that the workpiece sits on an externally profiled mandrel in its processing area. Furthermore, it is also possible for an internal toothing to be created in a hollow part without external toothing also being created at the same time. Provision can also be made for the workpiece to sit on an externally profiled mandrel in its processing area.
  • the profiling can have a large number of profile gaps (recesses in the workpiece in the processing area), which are distributed over the circumference, in particular, for example, evenly distributed over the circumference.
  • profile gaps can also be unevenly distributed over the circumference.
  • the rotating movement of the tool holder can be a continuous movement and can in particular take place at a constant speed.
  • the rotational movement of the tool holder can be a continuous movement and can in particular take place at a constant rotation speed.
  • these two speeds can have a time-constant relationship to one another.
  • the orbital movement can be a circular movement.
  • a trajectory (movement path) that describes the movement of the tool holder can result from a superposition of the rotating movement with a (radial) movement perpendicular to the longitudinal axis.
  • the orbiting body performs rotation about a orbiting body axis. This allows the rotating movement of the tool holder to be generated. The rotating movement of the tool holder can take place in a plane perpendicular to the rotating body axis.
  • the rotating body axis and the axis of rotation can be aligned parallel to one another.
  • the rotating movement of the tool holder can take place in a plane to which the longitudinal axis is aligned parallel.
  • the rotation of the circulating body can be a continuous movement and in particular have a constant rotation speed.
  • the rotational movement of the tool holder can be a continuous movement and in particular have a constant rotation speed.
  • these two rotation speeds can have a time-constant relationship to one another.
  • a synchronization of these two rotation speeds can be achieved, for example, by means of a planetary gear, as already described above.
  • the planetary gear can have a ring gear and a planetary gear running in the ring gear.
  • the planet gear can be part of the tool holder. And it can carry out the rotational movement together with this.
  • the position of the planet gear can be fixed relative to the position of the tool held on the tool holder.
  • the ring gear can be fixed in a profiling head in which the circulating body is mounted, in particular rotatably mounted.
  • the profiling head can be operatively connected to a drive, for example a linear drive, for the radial feed.
  • Two profiling heads can also be provided, each with at least one tool, for example with a first tool in a first profiling head and a second tool in a second profiling head. These can be arranged opposite one another with respect to the longitudinal axis, for example in mirror image relation to a plane containing the longitudinal axis.
  • the two profiling heads in particular including the device parts provided in them such as the circulating body and ring gear, can be designed the same or manufactured according to the same specifications, with the movements of the device parts running in mirror image with respect to a plane containing the longitudinal axis.
  • the respective rotating movements of the two tools mentioned can be different from one another, namely, in particular, run in mirror images of one another to a plane containing the longitudinal axis.
  • the respective rotating movements of the two tools mentioned can take place in one and the same plane.
  • the rotating movement of the first tool can be synchronized with the rotating movement of the second tool (the second profiling head) so that the forming interventions of the two tools mentioned take place simultaneously.
  • Multiple tools can also be provided for other reasons and at other locations, for example within the same profiling head.
  • a single tool holder can hold two or more tools, for example in such a way that their effective areas are evenly distributed azimuthally with respect to the axis of rotation of the tool holder.
  • these tools can intervene in the workpiece to form it alternately during successive cycles.
  • two or more tool holders can be provided, each holding (at least) one tool.
  • the rotating movements of these tool holders can, for example, describe the same orbit; and they can be evenly distributed along the orbit.
  • these tool holders can be evenly distributed azimuthally with respect to the rotating body axis.
  • one intervention into the workpiece can take place per tool holder per rotation of the rotating body.
  • N indicates the number of tool holders, each with (at least) one tool.
  • the workpiece can be machined with 2-N-n tools.
  • the tools or at least their effective areas can, for example, be manufactured according to the same specifications.
  • the tool can be a rolling die.
  • the tool can have a setback (azimuthally) following the effective area, for example an inwardly directed shoulder.
  • a free person can there
  • the tool held by the tool holder can be set back radially relative to the effective area.
  • the tool can have a shape that corresponds to the negative of the shape of a profile gap of the generating profiling. This can be provided in particular if the profiling includes or is an external profiling. At the same time as the external profiling, an internal profiling can optionally be created - or not.
  • the effective range can be defined by the fact that it is the area of the tool in which the tool comes into (direct) contact with the workpiece.
  • the tool and the tool holder can have a constant relative position to each other.
  • the tool can rotate with the associated tool holder.
  • the relative position of the tool to the planetary gear can also be constant.
  • the tool can be part of a tool insert that can be fixed to the tool holder.
  • the drive device for generating a rotational movement of the tool holder about its axis of rotation can be at least partially identical to the second synchronization device.
  • the planetary gear already described can, on the one hand, be part of this drive device by converting the movement of the rotating body into the rotational movement of the tool holder, and on the other hand it can be part of the first synchronization device (or correspond to the first synchronization device) by converting the rotational movement of the tool holder the rotating movement of the tool holder.
  • the drive device for generating a movement of the rotating body can, for example, have a drive spindle. This can also be part of the drive device for generating a rotational movement of the tool holder about its axis of rotation, for example mediated by the planetary gear.
  • the circulating body can be mounted in a profiling head, in particular rotatably mounted. And this can be driven towards the longitudinal axis by means of a drive for the radial feed movement.
  • the drive can, for example, be a drive for a movement of the profiling head that runs perpendicular to the longitudinal axis.
  • the first synchronization device and the second synchronization device can be one and the same synchronization device or can be completely or partially different from one another.
  • the first synchronization device can be set up to ensure that a rotational frequency of the rotating movement of the first tool holder has a fixed (time-unchanged) relationship with a speed of the rotational movement of the workpiece.
  • the second synchronization device can be set up to ensure that a rotational frequency of the rotating movement of the tool holder has a fixed (time-unchanged) relationship with a speed of rotation of the tool holder.
  • the device can be set up so that the cold forming of the workpiece can take place through a large number of forming interventions carried out one after the other. These can be interventions by the same tool or interventions by several tools.
  • the first synchronization device can be set up to synchronize the rotational movement of the workpiece holder with the rotating movement of the tool holder in such a way that several of the forming interventions take place at different positions distributed over a circumference of the workpiece.
  • the device can be set up so that in each of the forming interventions an effective area of a tool (for example one and the same tool or several tools) comes into contact with the processing area.
  • the tool (more precisely: the effective area) can roll on the outer surface (in the processing area).
  • different points of the effective area can come into contact with different points of the processing area one after the other during the duration of the intervention.
  • the second synchronization device can be set up to synchronize the rotational movement of the tool holder with the rotating movement of the tool holder such that the tool passes through the same azimuthal orientations in each of the forming interventions of the tool.
  • the second synchronization device is set up to synchronize the rotary movement of the at least one tool holder with the rotating movement of the respective tool holder in such a way that each of the Tools undergo the same azimuthal orientations in each of the forming interventions of the corresponding tool.
  • the first synchronization device can, for example, be set up so that an Nth of a period of the rotating movement is equal to an integer multiple is one rth of the period of the rotational movement of the workpiece.
  • the interventions take place exactly at the positions along the circumference of the workpiece where profile gaps need to be created.
  • the first synchronization device can, for example, be set up in such a way that an Nth of a period of the rotating movement is equal to an rth of the period of the rotational movement of the workpiece.
  • the interventions take place at adjacent profile gap positions.
  • Fig. 1 shows a device 100 for carrying out the method for cold-forming profiling of a workpiece 1.
  • the workpiece 1 is held in a workpiece holder 10, which is in Fig. 1 is shown symbolically and has a longitudinal axis Z, which is also a longitudinal axis of the workpiece 1.
  • the workpiece 1 has a processing area 11 which is rotationally symmetrical with respect to the longitudinal axis Z and has an outer surface 11a, which is, for example, cylindrical and in which a profiling is to be introduced, and which is adjoined by a second area 12 in which the workpiece 1 has a has a larger diameter than in the processing area 11.
  • a profiling limiting structure designed as a workpiece shoulder 13 is formed between the areas 11 and 12.
  • FIG. 1 Symbolically represented circulating body 8 is provided, which carries out a movement R8 ', namely by moving by one in in the example shown Fig. 1 Circulating body axis, not shown, rotates and thus carries out a rotation R8 '.
  • a tool holder 5 is mounted in the circulating body 8 and, due to the movement R8 'of the circulating body 8, carries out a rotating movement R8 along an orbit U.
  • the tool holder 5 has an axis of rotation W about which it performs a rotational movement R5.
  • This rotary movement R5 can, for example, be generated directly by a drive (rotary drive) or can be derived from the movement R8 'of the rotating body 8, for example mechanically, for example by means of a planetary gear, as will be described in more detail below.
  • the tool holder 5 holds at least one tool 2, which has an effective area 21 in which it comes into cold-forming contact with the workpiece 1, namely by carrying out a movement during an intervention in the workpiece 1, which will be described in more detail below.
  • this movement can be an at least partially rolling movement and can be composed, for example, of a rolling movement (of the effective area on the processing area) and a sliding movement (of the tool on the workpiece).
  • profile gaps are created in the workpiece 1, with the tool 2 carrying out a large number of interventions per profile gap.
  • the workpiece 1 can be driven to a rotational movement R1 about the longitudinal axis Z by means of the workpiece holder 10, in particular wherein the rotational movement R1 can be an intermittent rotation, so that the tool intervention can take place in a phase when the workpiece 1 is at a standstill.
  • Fig. 1 Active connections for the purpose of driving are shown by dashed lines and active connections for the purpose of synchronization (which can be implemented mechanically and/or electronically) are shown by thick dotted lines.
  • a drive device A1 is provided for generating a rotational movement R1 of the workpiece holder 10, for example a torque motor or another rotary drive, and a drive device A8 for generating the movement R8 'of the rotating body 8.
  • the drive device A8 can, for example, have a drive shaft.
  • the axis of rotation W is aligned parallel to the rotating body axis.
  • the rotating movement R8 of the tool holder takes place in a plane on which these axes are vertical.
  • the longitudinal axis is aligned parallel to this plane.
  • the workpiece rotation R1 and the rotating movement R8 are synchronized with one another by means of a first synchronization device S1, for example by the workpiece rotation R1 and the movement R8 'of the rotating body 8 being synchronized with one another by means of the first synchronization device S1 are.
  • the synchronization can consist of the two movements (R1 and R8 or R8') having a constant ratio of their rotation times.
  • This synchronization can be implemented, for example, by means of an electronic synchronization device S1.
  • Other synchronization devices for example mechanical ones, are also fundamentally conceivable.
  • a second synchronization device S5 is provided, by means of which the rotary movement R5 of the tool holder 5 and the rotating movement R8 of the tool holder 5 are synchronized with one another.
  • This can be realized, for example, by means of an electronic synchronization device, which can then also be identical to the first synchronization device S1.
  • this synchronization is implemented mechanically, namely by means of the already mentioned planetary gear.
  • the drive device A5 can be at least partially identical to the second synchronization device S5, namely in that the planetary gear, on the one hand, generates the rotary movement R5 and, on the other hand, effects the synchronization between the rotary movement R5 and the rotating movement R8.
  • the synchronization achieved by means of the second synchronization device S5 can cause the tool 2 to assume the same azimuthal orientations (based on the axis of rotation W of the tool holder 5) during each of its interventions in the workpiece 1.
  • This can be advantageous, for example, if the workpiece 1, as in Fig. 1 shown has an outwardly projecting workpiece shoulder 13 and the profiling should be created close to this. This will be in Figs. 2A to 2D explained.
  • Fig. 2A illustrates the situation at approximately the beginning of an intervention, where the tool 2 just comes into contact with the workpiece 1.
  • the azimuthal angle ⁇ in the illustrated example is approximately 317°, corresponding to -43°.
  • Fig. 2B illustrates the situation about halfway through the procedure.
  • the azimuthal angle ⁇ is a few degrees in the illustrated example.
  • Fig. 2C illustrates the situation at approximately the end of an intervention, where the tool 2 is still in contact with the workpiece 1.
  • the azimuthal angle ⁇ is approximately 40° in the illustrated example.
  • Fig. 2D illustrates the situation shortly after the end of an intervention, where the tool 2 is no longer in contact with the workpiece 1.
  • the azimuthal angle ⁇ in the illustrated example is a good 70°.
  • the second synchronization device S5 By means of the second synchronization device S5, for example, it can be ensured that during each revolution the tool 2 passes through the azimuthal angular range, here for example from -43° to a good 70°, during the engagement with the workpiece 1.
  • the tool 2 is a sectoral tool. Adjoining the effective area, it has the free area 22, in which it is set back radially (with respect to the axis of rotation W).
  • the workpiece 1 could have a further workpiece projection at the end shown on the right, instead of stopping there (in Fig. 2A indicated by dots).
  • Fig. 2A indicated by dots
  • Fig. 3 shows a tool holder 5 with tool 2, in a section through its axis of rotation W. It has (optionally) two planet gears 45, the axes of which are coaxial with the axis of rotation W, and two storage areas 2L for rotatable storage in the rotating body 8 (see Fig. 1 ).
  • the tool holder 5 can be formed in one piece.
  • the tool 2 forms part of a tool insert 2e, which is fixedly connected to the tool holder 5, for example screwed to it.
  • the tool 2 can be attached to the tool holder 5 so that it cannot rotate relative to the planet gears 45.
  • Fig. 4 illustrated in a view of a section perpendicular to the axis of rotation in detail of a planetary gear 40 of the device, for example having planet gears 45, as in the tool holder 5 according to Fig. 3 are integrated, of which in Fig. 4 but only one is visible.
  • the planetary gear 40 has a ring gear 41 with an axis 42 and can also have a second one in addition to this Fig. 4 Have a ring gear, not shown, in which the second planetary gear of the tool holder 5 runs.
  • the axis 46 of the planet gear 45 is coaxial with the axis of rotation W.
  • the rotating body axis V (corresponding to the axis of rotating movement of the tool carrier) is coaxial with the axis 42 of the ring gear 41.
  • the planetary gear 40 By appropriately dimensioning the planetary gear 40, it can be ensured, for example, that the tool 2 is at a specific position along the orbit U (see Fig. 1 ) of the tool carrier 5, for example where the engagement in the workpiece 1 is to be completed, has the same azimuthal orientation with each revolution.
  • the planetary gear can, for example, also be implemented with no more than one ring gear and no more than one planetary gear.
  • the mechanical requirements for the workpiece holder 10 can be greatly reduced if two tool interventions take place with each tool intervention, namely at locations of the workpiece 1 that are opposite one another with respect to the longitudinal axis, and in particular also axially (relative to the longitudinal axis Z) at the same position.
  • Fig. 5 illustrates a detail of a device 100 with two profiling heads 3a, 3b, with a radial infeed also symbolized.
  • the circulating bodies (including at least one tool carrier each) and, if provided, the planetary gears can be stored in the profiling heads 3a, 3b.
  • the profiling heads 3a, 3b or the parts mounted in them can be essentially similar, but mirror-inverted in terms of movements.
  • FIG. 5 The workpiece 1 shown symbolically (dashed line) can therefore be machined in mirror image by two tools that are opposite each other with respect to the longitudinal axis Z.
  • the movements of the two circulating bodies can be synchronized with one another or result from one and the same movement, for example from one and the same rotation drive.
  • one or more ring gears can be fixed in each of the profiling heads.
  • the tools can be advanced radially, i.e. in a direction perpendicular to the longitudinal axis Z, since as the number of interventions increases, the profile gaps that are forming become deeper and deeper. This also applies if only a single profiling head is provided or tool intervention only takes place from one side or does not take place using more than a single tool at the same time.
  • Such a radial feed movement is in Fig. 5 symbolized by the open arrows labeled L2. It can take place along an axis that is perpendicular to the longitudinal axis and parallel to a plane that is described by the rotating movement of the tool holder.
  • a drive A2 can be provided for radial delivery.
  • Figs. 6A-6C Due to the radial infeed, the trajectory or the movement path of the tool holder results from a superposition of the rotating movement U with the (linear) radial infeed movement, as in Figs. 6A-6C is schematically illustrated.
  • Fig. 6A symbolizes an orbit U of a tool holder.
  • Fig. 6B symbolizes a radial infeed movement L2.
  • Fig. 6C symbolizes a trajectory T of a tool holder, which results from a superposition of rotating movement U and radial infeed L2. In reality, the distances between the approximately circular trajectory components are much smaller than in Fig. 6C presented for clarity.
  • Fig. 7 illustrates a detail of a device 100 with two profiling heads, each of which has three tool holders 5a1, 5a2, 5a3 or 5b1, 5b2, 5b3, each with two tools 2a1, 2al 'or 2a2, 2a2' etc.
  • the second synchronization device S5 (see Fig. 1 ) can be set up so that with n tools per tool holder, each of the tools is at a specific position along the orbit U (see Fig. 1 ) of the tool carrier 5 (for example where the engagement in the workpiece 1 is to be completed) has an azimuthal orientation that deviates by 360 ° / n from the azimuthal position at the beginning of its rotation.
  • the deviation can also be a multiple of 360°/n, provided that this multiple is different from 360° and from a multiple of 360°.
  • Fig. 7 illustrates that using the method described in this text, profiling can also be created between two profiling limiting structures, for example between the two workpiece shoulders 13, 13 ', whereby the profiling can reach up to the profiling limiting structures.
  • Fig. 8 shows, in a section perpendicular to the longitudinal axis Z, a profile body 1p, which has a profiling P, which can be generated by means of the method described or by means of the device described.
  • the profiling has a large number of profile gaps pl.
  • Each of these profile gaps pl was created by carrying out a large number of interventions one or more tools 2 one after the other, each of which has an effective area 21, which is shown in the section according to Fig. 8 has a shape that essentially corresponds to the shape of a profile gap pl to be created.
  • the profile body 1p is a hollow part that sits on an externally profiled mandrel 6 and has a shoulder 13 that projects outwards.
  • an external profiling can be created without an internal profiling being created at the same time.
  • Fig. 9 illustrates this.
  • Fig. 9 shows, in a section perpendicular to the longitudinal axis, a detail of a workpiece 1, which sits on an externally profiled mandrel 6 and is about to be processed by means of a tool 2 in the manner described. During the machining, material from the workpiece 1 is then formed into profile gaps 6p.
  • the tool 2 has a flat effective area.
  • Fig. 10 shows in a section containing the longitudinal axis Z using an example that an outer surface of a processing area 11 of a workpiece 1 does not have to be cylindrical, but can, for example, be conical, as shown.
  • Fig. 11 shows in a section perpendicular to the longitudinal axis Z using an example that an outer surface 11a of a processing area 11 of a workpiece 1 does not necessarily have to be rotationally symmetrical, but can, for example, be polygonal, as shown. Shown in Fig. 11 is the case that the outer surface 11a has six partial surfaces; However, it can be provided that the outer surface 11a has many more partial areas. In the associated processing area, the workpiece 1 can, for example, be prismatic.
  • Fig. 12 shows an example of a workpiece 1 or a profile body 1p with two axially spaced profiling limiting structures 13, 13 ', which protrude radially outwards.
  • Profiling boundary structures may also be directed radially inwardly, relative to the adjacent portion of the processing area.
  • Fig. 13 shows an example of this in which the profiling limiting structures 13 at one end of the processing area 11 are directed radially inwards and the profiling limiting structures 13 'at the other end of the processing area 11 are directed radially outwards.
  • Fig. 14 illustrates using an example that a processing area 11 does not necessarily have to be limited on one or two sides by profiling limiting structures.
  • a profile body is shown in which both ends of the processing area 11 are not adjacent to profiling limiting structures.
  • Fig. 15 illustrates using an example that a profiling limiting structure 13 of a workpiece 1 is not necessarily rotationally symmetrical.
  • a plurality of radially outwardly projecting workpiece projections are provided, located at various azimuthal positions.
  • Fig. 16 illustrates, in a section perpendicular to the longitudinal axis L, a workpiece 1 or a profile body 1p, which has a profiling, the profile gaps 1p of which are azimuthally distributed unevenly.
  • profile gaps evenly distributed over the circumference are preferred for many applications, there are applications for which an azimuthally irregular arrangement of the profile gaps pl is advantageous.
  • a single workpiece can have two or more different processing areas, which can, for example, be axially spaced from one another, and which are each provided with a profiling in the manner described in this text.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Turning (AREA)
  • Retarders (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (15)

  1. Procédé de fabrication d'un corps profilé (1p) pourvu d'un profilage (P) par déformation à froid d'une pièce (1) qui présente un axe longitudinal (Z) et, dans une zone d'usinage (11), une surface extérieure (1la) dans laquelle le profilage (P) doit être pratiqué, la pièce (1) réalisant un mouvement de rotation (R1) autour de l'axe longitudinal (Z) et étant usinée par un premier outil (2) en une pluralité d'interventions de déformation exécutées successivement, dans chacune desquelles une zone d'action (21) du premier outil (2) vient en contact avec la zone d'usinage (11), le premier outil (2) étant tenu par un premier porte-outil (5 ; 5al), et le premier porte-outil (5 ; 5al, ...)
    - étant monté dans un corps de révolution (8) de manière rotative autour d'un axe de rotation (W) du premier porte-outil (5 ; 5al, ...) ; et
    - étant entraîné par le corps de révolution (8) dans un mouvement de révolution (R8) ;
    dans lequel
    - le mouvement de rotation (R1) de la pièce (1) étant synchronisé avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5al, ...) ;
    caractérisé en ce que
    - le premier porte-outil (5 ; 5a1, ...) est entraîné dans un mouvement de rotation (R5) autour de l'axe de rotation (W), le terme azimutal utilisé ci-après étant défini par l'axe de rotation (W) ; et
    - le mouvement de rotation (R5) du premier porte-outil (5 ; 5al, ...) est synchronisé avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5a1, ...).
  2. Procédé selon la revendication 1, dans lequel
    - le mouvement de rotation (R1) de la pièce (1) est synchronisé avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5al, ...) de telle sorte qu'à différentes positions réparties sur une circonférence de la pièce (1), respectivement plusieurs des interventions de déformation ont lieu ; et
    - le mouvement de rotation (R5) du premier porte-outil (5 ; 5al, ...) est synchronisé avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5al, ...) de telle sorte que le premier outil (2) passe par les mêmes orientations azimutales (ϕ) lors de chacune des interventions de déformation.
  3. Procédé selon la revendication 1 ou la revendication 2, dans lequel le corps de révolution (8) réalise une rotation (R8') autour d'un axe de corps de révolution (V), et dans lequel l'axe de corps de révolution (V) et l'axe de rotation (W) sont alignésparallèlement l'un à l'autre.
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel le premier porte-outil (5 ; 5al, ...) décrit une trajectoire (T) résultant d'une superposition du mouvement de révolution (U) et d'un mouvement d'avance (L2) dirigé radialement vers l'axe longitudinal (Z).
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel, lorsque le premier outil (2) est tenu par le premier porte-outil (5 ; 5a1, ...), la zone d'action (21) du premier outil (2) s'étend en azimut sur un secteur seulement.
  6. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel la pièce présente une structure de limitation du profilage (13) consécutive à la zone d'usinage (11), et dans lequel, à chacune des interventions de déformation, la zone d'action (21) vient en contact avec la zone d'usinage (11) jusqu'à la structure de limitation du profilage (13).
  7. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel le mouvement de rotation (R5) du porte-outil (5 ; 5a1, ...) est synchronisé avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5al, ...) au moyen d'un engrenage planétaire (40).
  8. Procédé selon la revendication 7, dans lequel l'engrenage planétaire (40) présente une couronne (41) et un pignon satellite (45) se déplaçant dans la couronne (41), le pignon satellite (45) faisant partie du premier porte-outil (5 ; 5al, ...) et exécutant le mouvement de rotation (R5) conjointement avec celui-ci.
  9. Procédé selon l'une quelconque des revendications 1 à 8, dans lequel la pièce est usinée simultanément par un deuxième outil (2b) en une pluralité d'interventions de déformation exécutées successivement, dans chacune desquelles une zone d'action du deuxième outil (2b) vient en contact avec la zone d'usinage (11), en particulier dans lequel chacune des interventions de déformation exécutées successivement du deuxième outil (2b) a lieu à une position de la pièce (1) opposée à la position de la pièce (1) par rapport à l'axe longitudinal (Z) à laquelle une intervention de déformation du premier outil (2a) a lieu simultanément.
  10. Procédé selon l'une quelconque des revendications 1 à 9, dans lequel la pièce est additionellement usinée par un autre outil (2a2, 2a1') en une pluralité d'interventions de déformation exécutées successivement, dans chacune desquelles une zone d'action de l'autre outil (2a2, 2a1') vient en contact avec la zone d'usinage (11), en particulier dans lequel un porte-outil (5 ; 5a2, ...) qui tient l'autre outil (2al') réalise le même mouvement de révolution (R8) que le porte-outil (5 ; 5al, ...) déjà mentionné, et dans lequel ce porte-outil (5 ; 5a2) est identique au porte-outil (5 ; 5al, ...) déjà mentionné ou est différent de celui-ci.
  11. Procédé selon la revendication 10, dans lequel l'autre outil (2a1') est tenu par le même porte-outil (5al) que le premier outil (2 ; 2al), en particulier dans lequel les zones d'action des deux outils (2al ; 2a1') sont espacées l'une de l'autre en azimut.
  12. Procédé selon la revendication 10, dans lequel il est prévu un deuxième porte-outil (5a2), qui est différent du premier porte-outil (5al), et par lequel l'autre outil (2a2) est tenu, les mouvements de révolution du premier et du deuxième porte-outil décrivant le même trajet de révolution (Ua).
  13. Dispositif (100) pour la fabrication d'un corps profilé (1p) pourvu d'un profilage (P) par déformation à froid d'une pièce (1), le dispositif (100) présentant :
    - un porte-pièce (10) pouvant tourner autour de son axe longitudinal (Z) pour tenir la pièce (1) ;
    - un dispositif d'entraînement (A1) pour générer un mouvement de rotation (R1) du porte-pièce (10) autour de l'axe longitudinal (Z) ;
    - un corps de révolution (8) ;
    - un premier porte-outil (5 ; 5a1) pour tenir un premier outil (2 ; 2a1), le porte-outil (5 ; 5al) étant monté dans le corps de révolution (8) de manière rotative autour d'un axe de rotation (W) du porte-outil (5 ; 5al) ;
    - un dispositif d'entraînement (A8) pour générer un mouvement du corps de révolution (8), par lequel le premier porte-outil (5 ; 5a1) peut être entraîné dans un mouvement de révolution (R8) ; et
    - un premier dispositif de synchronisation (S1) pour synchroniser le mouvement de rotation (R1) du porte-pièce (10) avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5a1) ;
    caractérisé en ce que le dispositif (100) présente
    - un dispositif d'entraînement (A5) pour générer un mouvement de rotation (R5) du premier porte-outil (5 ; 5a1) autour de son axe de rotation (W) ;
    - un deuxième dispositif de synchronisation (S5), pour synchroniser le mouvement de rotation (R5) du premier porte-outil (5 ; 5al) avec le mouvement de révolution (R8) du premier porte-outil (5 ; 5a1).
  14. Dispositif (100) selon la revendication 13, présentant un engrenage planétaire (40) qui est un constituant du deuxième dispositif de synchronisation (S5) et/ou un constituant du dispositif d'entraînement (A5) pour générer un mouvement de rotation (R5) du premier porte-outil (5 ; 5al) autour de l'axe de rotation (W).
  15. Dispositif selon la revendication 13 ou la revendication 14, dans lequel le corps de révolution (8) est monté dans une tête de profilage (3), et dans lequel le dispositif (100) présente un entraînement (A2) pour un mouvement de la tête de profilage (3) vers l'axe longitudinal (Z).
EP19808713.2A 2018-11-15 2019-11-14 Dispositif et procédé de profilage de pièces par formage à froid Active EP3880384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01419/18A CH714772A1 (de) 2018-11-15 2018-11-15 Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.
PCT/EP2019/081280 WO2020099536A1 (fr) 2018-11-15 2019-11-14 Dispositif et procédé de profilage de pièces par formage à froid

Publications (2)

Publication Number Publication Date
EP3880384A1 EP3880384A1 (fr) 2021-09-22
EP3880384B1 true EP3880384B1 (fr) 2024-02-07

Family

ID=64745818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19808713.2A Active EP3880384B1 (fr) 2018-11-15 2019-11-14 Dispositif et procédé de profilage de pièces par formage à froid

Country Status (10)

Country Link
US (1) US20210394250A1 (fr)
EP (1) EP3880384B1 (fr)
JP (1) JP7373567B2 (fr)
KR (1) KR20210091694A (fr)
CN (1) CN113015585B (fr)
BR (1) BR112021005864A2 (fr)
CH (1) CH714772A1 (fr)
MX (1) MX2021005743A (fr)
TW (1) TWI820243B (fr)
WO (1) WO2020099536A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH718706A1 (de) * 2021-06-04 2022-12-15 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US136620A (en) * 1873-03-11 Improvement in machines for rolling carriage-axles
US2715846A (en) * 1951-05-16 1955-08-23 Grob Inc Method of groove forming
GB716930A (en) * 1951-09-07 1954-10-20 Eumuco Ag Fur Maschb Improvements relating to segmental rolls for rolling mills
DE1073996B (fr) * 1958-01-29 1960-01-28
JPS4924787Y1 (fr) * 1969-05-22 1974-07-03
JPS4924787B1 (fr) * 1970-07-10 1974-06-25
CH658006A5 (de) * 1983-03-07 1986-10-15 Grob Ernst Fa Verfahren und vorrichtung zum kalibrierenden reduzieren der querschnittsflaeche eines dabei rotierenden werkstueckes.
DE3583643D1 (de) * 1984-10-04 1991-09-05 Bishop Arthur E Herstellung von schieberkernen.
CH670970A5 (fr) * 1986-09-18 1989-07-31 Grob Ernst Fa
DE3817680A1 (de) * 1988-05-25 1989-12-07 Hilti Ag Umformungsverfahren fuer werkzeuge
CH675840A5 (fr) * 1988-10-05 1990-11-15 Grob Ernst Fa
CH685542A5 (de) * 1992-07-16 1995-08-15 Grob Ernst Fa Verfahren zum Herstellen eines hohlen Werkstücks, das wenigstens innen gerade oder schräg zur Werkstückachse profiliert ist.
JP2001030018A (ja) * 1999-07-19 2001-02-06 Sango Co Ltd スピニング加工による有底筒体の製造方法及び装置
WO2005075127A1 (fr) * 2004-02-05 2005-08-18 Ernst Grob Ag Procédé pour profiler des pièces d'usinage cylindriques
WO2005075125A1 (fr) 2004-02-06 2005-08-18 Ernst Grob Ag Dispositif et procede de production de profils de type dente sur des pieces
KR101292287B1 (ko) * 2005-07-15 2013-08-01 에른스트 그로브 아게 박벽의 원통형 중공부에 내측 및 외측 치형부를 형성하는방법
DE102006025034A1 (de) * 2006-05-26 2007-11-29 Müller Weingarten AG Vorrichtung und Verfahren zur Herstellung von Profilkörpern
DE102007037164B3 (de) * 2007-08-07 2008-07-24 Emag Holding Gmbh Verfahren und Vorrichtung zur Bearbeitung von Kugelnaben für Gleichlaufgelenke
DE102008019437A1 (de) * 2008-04-17 2009-10-22 Gottfried Wilhelm Leibniz Universität Hannover Vorrichtung und spanloses Umformungsverfahren zum Einbringen eines Außenprofils in ein Werkstück
PL2210682T3 (pl) * 2009-07-09 2012-07-31 Leifeld Metal Spinning Ag Sposób wyoblania z walcowaniem oraz urządzenia do wyoblania z walcowaniem półwyrobu w kształcie rury
JP5866642B2 (ja) * 2012-10-17 2016-02-17 日本スピンドル製造株式会社 回転塑性加工装置
DE102014002971A1 (de) 2014-03-06 2015-09-10 Webo Werkzeugbau Oberschwaben Gmbh Verfahren und Vorrichtung zur Herstellung eines innen-und außenverzahnten topfförmingen Blechteils mit einem Umformkopf
CN106256460B (zh) * 2016-09-23 2018-06-12 西安建筑科技大学 一种渐开线齿轮滚轧模具及成形工艺

Also Published As

Publication number Publication date
CH714772A1 (de) 2019-09-13
JP7373567B2 (ja) 2023-11-02
CN113015585B (zh) 2023-06-16
JP2022509778A (ja) 2022-01-24
TWI820243B (zh) 2023-11-01
KR20210091694A (ko) 2021-07-22
TW202106410A (zh) 2021-02-16
MX2021005743A (es) 2021-08-11
US20210394250A1 (en) 2021-12-23
EP3880384A1 (fr) 2021-09-22
CN113015585A (zh) 2021-06-22
WO2020099536A1 (fr) 2020-05-22
BR112021005864A2 (pt) 2021-07-27

Similar Documents

Publication Publication Date Title
EP3274118B1 (fr) Procédé et dispositif servant à tailler des roues d'usinage par décolletage en développante
EP3043945B1 (fr) Procédé de décolletage en développante, et dispositif correspondant
EP1454684B1 (fr) Procédé pour le formage d' une pièce et machine de laminage
DE19830817B4 (de) Verfahren zum Umformen eines Werkstücks durch Drückwalzen
DE2604281A1 (de) Maschine zum schaben und/oder profilrollen der verzahnung von zahnraedern
CH670970A5 (fr)
EP2340898B1 (fr) Machine de laminage
EP3880384B1 (fr) Dispositif et procédé de profilage de pièces par formage à froid
DE102017114152A1 (de) Zahnrad, Verfahren zum Herstellen der Verzahnung eines Zahnrades, sowie Werkzeug zum Herstellen der Verzahnung eines Zahnrades
DE4315503A1 (de) Verfahren zum Herstellen eines hohlen Werkstücks, das wenigstens innen gerade oder schräg zur Werkstückachse profiliert ist
DE1905949C2 (de) Vorrichtung zum Querwalzen von Rotationskörpern
DE102017105502A1 (de) Dosenherstellungsmaschine
EP2841218B1 (fr) Dispositif et procédé de fabrication de couronnes à parois épaisses pourvues d'une denture intérieure de roue de roulement
EP4347151A1 (fr) Dispositif et procédé de profilage de pièces par formage à froid
DE4321779B4 (de) Verfahren zur Herstellung eines Starterkranz-Zahnrads aus Blech und nach dem Verfahren hergestelltes Starterkranz-Zahnrad
DE3715392A1 (de) Verfahren zum herstellen eines eine gerade oder schraege innenverzahnung aufweisenden topfartigen hohlkoerpers
DE1815027A1 (de) Roll-Schmiedemaschine
DE19544301C2 (de) Verfahren und Vorrichtung zum Formstechen und Formdrehen
DE4106966C2 (de) Vorrichtung zum Herstellen von Zahnriemenscheiben
WO2009112074A1 (fr) Dispositif et procédé de production de profils dentés sur des pièces
DE102006006192A1 (de) Profilwalzmaschine mit Hydromotor
DE889888C (de) Verfahren zur Herstellung von schraubenfoermigen Drahtspulen
DE2416933A1 (de) Vorrichtung zum herstellen einer kurbelwelle
CH668726A5 (de) Verfahren und vorrichtung zum herstellen von schraegen verzahnungen durch kaltumformen.
CH714660A1 (de) Vorrichtung und Verfahren zur Herstellung eines Hohlrades mit Innen- und Aussenverzahnung sowie Hohlrad.

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210420

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230830

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231005

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019010547

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240507

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240507

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240507

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240207